Don't have time to say anything intelligent this time, Terry.
But I agree with the others that this has the feeling of a tragedy. A Greek tragedy, or a Shakespearian tragedy. In those, the hero was often a good man who, nevertheless, had some sort of flaw. (Don't we all?) But this hero's flaw is exposed to just the sort of situation or temptation that it, and he, can't deal with. And so he falls. Have you seen the Disney movie, Hercules? There is a scene there where Phil, Hercules' coach, taps the heel of a statue of Achilles, and the statue promptly shatters into a million tiny little pieces.
I don't think Clark will be as thoroughly undone in this fic as the Achilles statue was in
Hercules. But the situation is serious and ominous. So let me come up with one more literary comparison for you fic, Terry: I guess Robin might be Clark's Achilles heel.
And not only does your story feel like a tragedy waiting to happen, but is also has the breathless feeling of a thriller. And it is excellently written as always.
Ann